Highest temperature in Beijing on August 15?

Platform comparison

Market context

Beijing's weather in mid-August sits firmly within the city's summer monsoon season, when daily highs typically range between 28–34°C. The 15th falls during a period of consistent heat and humidity, with afternoon thunderstorms common but rarely severe enough to suppress peak temperatures. Historical data from Beijing Capital International Airport, the official resolution source, shows August highs have exceeded 35°C in roughly 40% of years over the past two decades, though readings above 37°C remain less frequent.

The 0% crowd probability suggests traders are pricing in an expectation that temperatures will fall within a lower range than the market's highest bracket. This reflects baseline August conditions rather than any exceptional weather pattern. However, the settlement window closes at midday UTC on the 15th, creating a timing dependency: if peak temperatures occur in late afternoon local time (as is typical), traders relying on real-time updates face a narrow window to adjust positions before resolution. Weather Underground's Daily Observations table, specified as the primary source, occasionally records slightly different maxima than summary displays due to station calibration or data-logging intervals.

Traders should monitor China Meteorological Administration forecasts from early August, which typically issue 10–14 day outlooks by the first week of the month. Any unusual pressure systems or early-season cold fronts pushing southward could suppress typical August highs. Conversely, sustained high-pressure systems or delayed monsoon activity would support above-average readings. The specificity of using airport station data means urban heat-island effects in central Beijing are irrelevant to resolution.

Methodology

Sports-specific comparison page for Highest temperature in Beijing on August 15?. Polymarket's live quote (Polygon order book) plus platform attributes for the three reference venues. Sports markets reward liquidity — Polymarket and Betfair are materially deeper than Kalshi or Manifold.

Resolution & payout

Sports markets typically settle on official final-whistle plus league confirmation. Polymarket uses UMA Optimistic Oracle with a source URL per contract — usually official league data feeds or ESPN/Soccerway. Two-hour dispute window, then smart-contract payout in USDC.

UK Frequently Asked Questions

Are prediction markets better than sports betting?

Prediction markets tend toward tighter odds than bookmakers because they use peer-to-peer exchange rather than bookmaker margin. On major matches, Polymarket quotes typically sit 2-5% closer to the true probability model than bet365 or DraftKings.

When do sports markets resolve?

Typically within hours of the official final whistle. Polymarket uses UMA Optimistic Oracle with source URLs pointing at official league data feeds — e.g. the Premier League for EPL markets, UEFA for Champions League, FIFA for World Cup.

Is Polymarket legal in the UK?

Polymarket is accessible to UK traders but is not UKGC-licensed. It operates under US CFTC jurisdiction. UK residents face no domestic legal prohibition on using it, but UKGC consumer protections do not apply. For UKGC-regulated alternatives, Betfair Exchange and Smarkets offer similar prediction-style markets.

Do I pay tax on prediction market profits in the UK?

UKGC-licensed platform profits (Betfair, Smarkets) are typically tax-free gambling winnings for UK individuals. Polymarket profits involve USDC crypto transactions, which HMRC treats as Capital Gains Tax events. Keep full transaction records and report via Self Assessment if gains exceed £3,000 per tax year.

How do I deposit on Polymarket from the UK?

UK traders typically fund Polymarket via Coinbase UK, Kraken or Revolut — buying USDC with GBP and transferring to a Polygon-compatible wallet (MetaMask, Coinbase Wallet). Polymarket's onboarding walks you through the bridging process. Typical GBP-to-USDC conversion costs 0.5–1%.